how to passing a parameter from android app to asp.net C# webservice and how to handlem that parameter in asp.net?

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ASP.NET

Mobile

Android

package com.example.dotnwebservice;

import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.PropertyInfo;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapPrimitive;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.AndroidHttpTransport;


public class WebserviceCall {

//String namespace = "http://www.webserviceX.NET/";
String namespace = "http://tempuri.org/ConvertWeight/";
//private String url = "http://www.webservicex.net/ConvertWeight.asmx";
//private String url = "http://192.168.1.10/Ws/Service1.asmx";
private String url = "http://192.168.1.3/vs/Service1.asmx";

String SOAP_ACTION;
SoapObject request = null, objMessages = null;
SoapSerializationEnvelope envelope;
AndroidHttpTransport androidHttpTransport;

WebserviceCall()
{

}


/**
* Set Envelope
*/
protected void SetEnvelope() {

try {

// Creating SOAP envelope
envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);

//You can comment that line if your web service is not .NET one.
envelope.dotNet = true;

envelope.setOutputSoapObject(request);
androidHttpTransport = new AndroidHttpTransport(url);
androidHttpTransport.debug = true;

} catch (Exception e) {
System.out.println("Soap Exception---->>>" + e.toString());
}
}

// MethodName variable is define for which webservice function will call
public String ConvertWeight(String MethodName, String weight,
String fromUnit, String toUnit)
{

try {
SOAP_ACTION = namespace + MethodName;

//Adding values to request object
request = new SoapObject(namespace, MethodName);

//Adding Double value to request object
PropertyInfo weightProp =new PropertyInfo();
weightProp.setName("Weight");
weightProp.setValue(weight);
weightProp.setType(double.class);
request.addProperty(weightProp);

//Adding String value to request object
request.addProperty("FromUnit", "" + fromUnit);
request.addProperty("ToUnit", "" + toUnit);

SetEnvelope();

try {

//SOAP calling webservice
androidHttpTransport.call(SOAP_ACTION, envelope);

//Got Webservice response
String result = envelope.getResponse().toString();
return result;

} catch (Exception e) {
// TODO: handle exception
return e.toString();
}
} catch (Exception e) {
// TODO: handle exception
return e.toString();
}
}
/************************************/
}



here is my android code for calling web service


and
.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.Script.Services;


namespace AndroidDemoService
{
    /// <summary>
    /// Summary description for Service1
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/ConvertWeight")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    // To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.
    // [System.Web.Script.Services.ScriptService]
    public class Service1 : System.Web.Services.WebService
    {

        [WebMethod]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
        public string ConvertWeight(String MethodName, String weight, String fromUnit, String toUnit)
        {
            if (weight == "" || weight == null)
            {
                string SA = "No Weight Received";
                return SA;
            }
            else
            {
                int W1 = Convert.ToInt32(weight.ToString());
                int weight1 = W1 / 1000;
                string SA = weight1.ToString();
                return weight;
            }
            //string SA = "hey this is test from nikunj.";

        }
    }
}

above is my asp.net service code i m able to getting result of this web service in android

but wen i passing parameter from my app to service web service could not giving a result.

here in my webservice
only if part of that is working but else part is not working when i am passing parameters